Effect of bonding temperature on interfacial microstructure and properties of TiAl/Ti3AlC2 joint

Xiaoguo Song; Meirong Wang; Xingtao Lin; Jiakun Liu; Jian Cao; Jicai Feng

Effect of bonding temperature on interfacial microstructure and properties of TiAl/Ti₃AlC₂ joint

Xiaoguo Song
, Meirong Wang
, Xingtao Lin
, Jiakun Liu
, Jian Cao^*
, Jicai Feng

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Diffusion bonding of TiAl alloy and Ti₃AlC₂ ceramic was achieved by using Ti/Ni composite interlay. The interfacial microstructure of TiAl/Ti₃AlC₂ joint was analyzed by SEM, EDS and XRD, and was determined as TiAl/Ti₃Al+Al₃NiTi₂/Ti₃Al/α-Ti+Ti₂Ni/Ti₂Ni/TiNi/Ni₃Ti/Ni/Ni₃(Ti, Al)/Ni₃Al+TiC_x+Ti₃AlC₂/Ti₃AlC₂. As the bonding temperature increased, the thickness of Tiss in TiAl/Ti interface gradually reduced, the Ti₃Al intermetallic layer gradually thickened, and the thickness of TiNi intermetallic layer increased significantly, while the thickness of Ti₂Ni and Ni₃Ti intermetallics layers remained substantially constant. The shear strength of joints first increased and then decreased with increasing the bonding temperature. The maximum shear strength of the joint can reach 85.3 MPa when bonded at 850℃. The joint fracture occurred mainly in Ni/Ti₃AlC₂ interface and Ti₃AlC₂ matrix.

Original language	English
Pages (from-to)	9-12
Number of pages	4
Journal	Hanjie Xuebao/Transactions of the China Welding Institution
Volume	35
Issue number	10
State	Published - 25 Oct 2014

Keywords

Ceramic
Diffusion bonding
Interfacial microstructure
TiAl alloy

Cite this

@article{3d5eba0813e44f23beb11b81bbb12e84,

title = "Effect of bonding temperature on interfacial microstructure and properties of TiAl/Ti3AlC2 joint",

abstract = "Diffusion bonding of TiAl alloy and Ti3AlC2 ceramic was achieved by using Ti/Ni composite interlay. The interfacial microstructure of TiAl/Ti3AlC2 joint was analyzed by SEM, EDS and XRD, and was determined as TiAl/Ti3Al+Al3NiTi2/Ti3Al/α-Ti+Ti2Ni/Ti2Ni/TiNi/Ni3Ti/Ni/Ni3(Ti, Al)/Ni3Al+TiCx+Ti3AlC2/Ti3AlC2. As the bonding temperature increased, the thickness of Tiss in TiAl/Ti interface gradually reduced, the Ti3Al intermetallic layer gradually thickened, and the thickness of TiNi intermetallic layer increased significantly, while the thickness of Ti2Ni and Ni3Ti intermetallics layers remained substantially constant. The shear strength of joints first increased and then decreased with increasing the bonding temperature. The maximum shear strength of the joint can reach 85.3 MPa when bonded at 850℃. The joint fracture occurred mainly in Ni/Ti3AlC2 interface and Ti3AlC2 matrix.",

keywords = "Ceramic, Diffusion bonding, Interfacial microstructure, TiAl alloy",

author = "Xiaoguo Song and Meirong Wang and Xingtao Lin and Jiakun Liu and Jian Cao and Jicai Feng",

year = "2014",

month = oct,

day = "25",

language = "英语",

volume = "35",

pages = "9--12",

journal = "Hanjie Xuebao/Transactions of the China Welding Institution",

issn = "0253-360X",

publisher = "Harbin Research Institute of Welding",

number = "10",

}

TY - JOUR

T1 - Effect of bonding temperature on interfacial microstructure and properties of TiAl/Ti3AlC2 joint

AU - Song, Xiaoguo

AU - Wang, Meirong

AU - Lin, Xingtao

AU - Liu, Jiakun

AU - Cao, Jian

AU - Feng, Jicai

PY - 2014/10/25

Y1 - 2014/10/25

N2 - Diffusion bonding of TiAl alloy and Ti3AlC2 ceramic was achieved by using Ti/Ni composite interlay. The interfacial microstructure of TiAl/Ti3AlC2 joint was analyzed by SEM, EDS and XRD, and was determined as TiAl/Ti3Al+Al3NiTi2/Ti3Al/α-Ti+Ti2Ni/Ti2Ni/TiNi/Ni3Ti/Ni/Ni3(Ti, Al)/Ni3Al+TiCx+Ti3AlC2/Ti3AlC2. As the bonding temperature increased, the thickness of Tiss in TiAl/Ti interface gradually reduced, the Ti3Al intermetallic layer gradually thickened, and the thickness of TiNi intermetallic layer increased significantly, while the thickness of Ti2Ni and Ni3Ti intermetallics layers remained substantially constant. The shear strength of joints first increased and then decreased with increasing the bonding temperature. The maximum shear strength of the joint can reach 85.3 MPa when bonded at 850℃. The joint fracture occurred mainly in Ni/Ti3AlC2 interface and Ti3AlC2 matrix.

AB - Diffusion bonding of TiAl alloy and Ti3AlC2 ceramic was achieved by using Ti/Ni composite interlay. The interfacial microstructure of TiAl/Ti3AlC2 joint was analyzed by SEM, EDS and XRD, and was determined as TiAl/Ti3Al+Al3NiTi2/Ti3Al/α-Ti+Ti2Ni/Ti2Ni/TiNi/Ni3Ti/Ni/Ni3(Ti, Al)/Ni3Al+TiCx+Ti3AlC2/Ti3AlC2. As the bonding temperature increased, the thickness of Tiss in TiAl/Ti interface gradually reduced, the Ti3Al intermetallic layer gradually thickened, and the thickness of TiNi intermetallic layer increased significantly, while the thickness of Ti2Ni and Ni3Ti intermetallics layers remained substantially constant. The shear strength of joints first increased and then decreased with increasing the bonding temperature. The maximum shear strength of the joint can reach 85.3 MPa when bonded at 850℃. The joint fracture occurred mainly in Ni/Ti3AlC2 interface and Ti3AlC2 matrix.

KW - Ceramic

KW - Diffusion bonding

KW - Interfacial microstructure

KW - TiAl alloy

UR - https://www.scopus.com/pages/publications/84911108166

M3 - 文章

AN - SCOPUS:84911108166

SN - 0253-360X

VL - 35

SP - 9

EP - 12

JO - Hanjie Xuebao/Transactions of the China Welding Institution

JF - Hanjie Xuebao/Transactions of the China Welding Institution

IS - 10

ER -

Effect of bonding temperature on interfacial microstructure and properties of TiAl/Ti₃AlC₂ joint

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